When two components make intermittent contact during the motion analysis, curve-to-curve contact applies contact forces to the components, preventing them from moving through each other. You can also constrain the continual contact of two components with curve-to-curve contact.
Specify intermittent curve-to-curve contact in a Motion Analysis study when you can you can use the contact between two curves or edges in parallel planes to define the contact between two components that are not in continual contact.
In intermittent curve-to-curve contact, the component curves that define contact can separate and rejoin according to the model dynamics.